Performance of <italic style="font-style: italic">x</italic>FeS-1 catalysts for propane oxidative dehydrogenation to propylene under CO<sub>2</sub> atmosphere

LIU Hongbin; MENG Wei; YU Jing; CAI Xin; CHEN Yujie; WANG Hongyun; DING Junwei; SHAN Yuling

doi:10.12434/j.issn.2097-2547.20240521

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Performance of xFeS-1 catalysts for propane oxidative dehydrogenation to propylene under CO₂ atmosphere

更新时间：2025-03-24

- Performance of xFeS-1 catalysts for propane oxidative dehydrogenation to propylene under CO₂ atmosphere
- Pages: 1-8(2025)
- 作者机构：
  
  1.青岛科技大学化工学院，山东青岛，266042
  2.上海航天设备制造总厂有限公司，上海，200245
- 作者简介：
- 基金信息：
- DOI：10.12434/j.issn.2097-2547.20240521
  CLC： TQ426.61
- Received：31 December 2024，
  
  Revised：13 March 2025，
  
  Published Online：28 May 2025，
- 稿件说明：
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刘宏宾,孟伟,于菁等.CO₂气氛下xFeS-1催化剂的丙烷氧化脱氢制丙烯性能[J].低碳化学与化工,

LIU Hongbin,MENG Wei,YU Jing,et al.Performance of xFeS-1 catalysts for propane oxidative dehydrogenation to propylene under CO₂ atmosphere[J].Low-Carbon Chemistry and Chemical Engineering,
刘宏宾,孟伟,于菁等.CO₂气氛下xFeS-1催化剂的丙烷氧化脱氢制丙烯性能[J].低碳化学与化工, DOI：10.12434/j.issn.2097-2547.20240521.

LIU Hongbin,MENG Wei,YU Jing,et al.Performance of xFeS-1 catalysts for propane oxidative dehydrogenation to propylene under CO₂ atmosphere[J].Low-Carbon Chemistry and Chemical Engineering, DOI：10.12434/j.issn.2097-2547.20240521.

摘要

采用CO

作为弱氧化剂辅助丙烷脱氢不但能够打破其脱氢热力学平衡，还能够拓展CO

利用场景。Fe基催化剂是重要的脱氢催化剂，同时具有较高的CO

活化性能，但应用于丙烷脱氢时面临产物选择性低、稳定性差等问题。采用配体保护一步水热法制备了

FeS-1系列催化剂，通过调节Fe引入量、反应条件调控了催化剂中FeO

物种种类和空间分布，采用XRD、UV-Vis和H

-TPR等表征方法分析了催化剂结构、FeO

物种种类和分散情况以及还原性能等。结果表明，在580 ℃、丙烷质量空速（

https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=81418641&type=

3.30200005

https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=81418617&type=

13.37733269

）6.48 h

-1

、

(CO

(Ar) = 4.50:2.25:23.25和总流量30 mL/min条件下，2FeS-1比浸渍法制备的2Fe/S-1的初始丙烷转化频率提高了一倍，引入CO

后3.5FeS-1的初始丙烯选择性达到89

%，且在CO

气氛下未见明显失活。在CO

气氛下，

FeS-1催化剂的催化丙烷氧化脱氢制丙烯性能显著提升，原因在于高分散的骨架Fe提供了更多的活性位点，CO

作为弱氧化剂抑制了丙烷深度氧化，提高了产物选择性并抑制了积炭，为优化丙烷氧化脱氢催化剂的设计及扩大其在CO

环境中的应用提供了重要的理论支持。

Abstract

Using CO

as a mild oxidant to assist propane dehydrogenation not only breaks the thermodynamic equilibrium of dehydrogenation but also expands the application scenarios of CO

utilization. Fe-based catalysts are important dehydrogenation catalysts with high CO

activation capability

but facing problems of low product selectivity and poor stability when applied to propane dehydrogenation. A series of

FeS-1 catalysts were synthesized by ligand-protected one-step hydrothermal method. By adjusting the Fe loadings and reaction conditions

the types and spatial distributions of FeO

species in the catalysts were controlled. XRD

UV-Vis

-TPR and other characterization techniques were used to analyze the structures

types and distributions of FeO

species and reduction properties of catalysts. The results reveal that under reaction conditions of 580 ℃

propane mass hourly space velocity (

https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=81418664&type=

3.30200005

https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=81418653&type=

13.03866673

) of 6.48 h

-1

(CO

(Ar) = 4.50:2.25:23.25 and total flow rate of 30 mL/min

the initial propane conversion frequency of 2FeS-1 is doubled compared to 2Fe/S-1 prepared by impregnation method

and the initial propylene selectivity of 3.5FeS-1 reaches 89% after introducing CO

with no significant deactivation observed at CO

atmosphere. Under CO

atmosphere

the performance of

FeS-1 catalysts for propane oxidative dehydrogenation to propylene is significantly improved

because the highly dispersed framework Fe provides more active sites

and CO

acts as the mild oxidant to suppress deep propane oxidation to improve product selectivity and mitigate carbon deposition. This provides valuable theoretical support for optimizing the design of catalysts for propane oxidative dehydrogenation and expanding their application in CO

-based environments.

关键词

Keywords

references

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Performance of xFeS-1 catalysts for propane oxidative dehydrogenation to propylene under CO2 atmosphere

DOI：10.12434/j.issn.2097-2547.20240521

摘要

Abstract

关键词

Keywords

references

Performance of xFeS-1 catalysts for propane oxidative dehydrogenation to propylene under CO₂ atmosphere